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Finding the Fourth Proportional to 527,648.40, 789,580.68 and 456,814.68

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Solution

The fourth proportional to 527,648.40, 789,580.68 and 456,814.68 is: 683,584.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,648.40 : 789,580.68 = 456,814.68 : x
  2. Step 2: Convert to fraction form
    527,648.40/789,580.68 = 456,814.68/x
  3. Step 3: Cross multiply
    527,648.40x = 789,580.68 × 456,814.68
  4. Step 4: Simplify right side
    527,648.40x = 360,692,045,668.38
  5. Step 5: Solve for x
    x = 360,692,045,668.38/527,648.40
  6. Step 6: Final answer
    x = 683,584.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.